Profiling-machine.



B. M; W. HANSON & 0. L. GROHMANN.

PROFILING MACHINE;

APPLICATION FILED AUG.B, 1911.

Patented Jan 20, 1914:.

s SHEEN-SHEET] Cil- Giro/am)? momma MACHINE. APPLICATION FILED A'UGJ, 1911 13. M. W; HANSON -& 0, L. GROHMANN.

,g; MW M.

. t ceases.

ATNT orrroE.

BENGT M. W. HANSON A???) CARL L. GROHMANN, F HARTFORD. CONNECTICUT, ASSIGNOBS TO PRATT 2: WHITNEY COMPANY, A CORPORATION OF NEW JERSEY.

IROFILING-MACHINE.

Specification of Letters Patent.

Patent ed Jan. 20, 191

Application,filedAngust 8. 1911. Serial No. 643,051.

To all whom it may concern limited States. residing at llnt'tfhrd, in the county of Hartford and State of Connectiout, have invented certain new and useful it known that we, Bnxo'r M. KY. H.-\N- so and Cam. Ii. Glllpiluaxn. citi'zens oi the Improvements in Profiling- Machines, of

which the following is a specification.

This invention relates'to -rofiliru ma chines, the ob ect, of the invention being to proride an effective apparatus of this charactor by which the automatic shaping,

through 'theagency of a suitable cutter or tool. of a practicallv endless variety of forms conforming: in contour respectively with formers of varying shapes, can be secured with rapidity and accuracy.

' .l n the drawings accompanying and formpart of the present specification we have shown in detail one convenient form of eml'iodimcnt. oi the invention which to enable those skilled in the art to practice said invention. will be set forth'fully in the fol lowing description, while the'novelty of the inrcntion will be included in the claims suc-.

' eroding said description. From such statevation of ,saidmachine as seen from the left inFig. 1, theoveightrbeing omitted. "Fig. 3

is a top planview of said machine.- Fig. 4

is a horizontal'section of an oscillating. arm and certain-of the parts inclos'edl. thereby. Fig. 5 is a top plan view of a fixture with its "appurtenances. Fig. G'is a vertical section of-the phi-ts shown in Fig. 5-w1th the outer.

end of the oscillating of thetaoe plate. Fig. 7 is a verticalsectionof the inner por tion of the oscillating'arm. Fig .-s8 rs'a plan view partly in" section of a portion of the, fixture and-the speed cont-rolling mechanism:

Fig. 9 is-a section on the line 9-4) of Fig. 4. Fig. 10 is a section on the line 1010- of Fig. 9. Fig. 11 is a sectional View of the face platedriving mechanism. Fig. 121s an clevationzof' certain members of thedrim ing mechan sm hereinafter more particularly described. 'Fig. 13 is a sectional view of the parts shown in Fig. Fig. 1- is a sectional View of driving mechanism for the spindles. Fig. 15 is a plan view of the bed and the parts sustained thereby but with the column and its adjuncts omitted and is in- 6 tended to show more particularly how the v workcan be utilized for profiling or form- Fl'g. 16 is an ing the former or pattern. elevation of the former pin shaft n'ovided' with a milling tool for profiling the-former which with the belting is also illustrated in said figure. Fig. 17 is a detail view hereinat'tcrmore particularly described. Fig. 18 is a- View of that'fragment of Fig. 8 at the left and on a much larger scale. is a side elevation partly in section of the upper part of the column and the slide mechanism thereon.

Like characters -The machine preferably involres'in its organization acarrier mounted for back and forth movement and which may, but not necessarily, consist of an oscillatory or swinging arm, and a work carrying face plate or rotary table supported by said arm, and in conjunction with the said oscillatory member and rotary face plate w'e'prefer to provide a' former which is generally rigidly associated withthe face plate. although in 8 the present case it is not directly connected therewith. In connection with the said former is a relatively fixed former stud or pin, and inimilling work the actiye. face of the former is'held solidly or'substnntially against. said stud during the rotation of said face plate; for this purpose a weight or, equivalent means may be provided. Thcconsequence isthat-when the face plate or work carrying table is rotated and when a 5 milling or cutting tool is brought into proper relationwith the work, the tool will'profile the work and will, relatively speaking, follovt a path approximately like that of the former. As a matterof "factthe Working surface ofthe former is to all intents and purposes in the present case practically like that of the Work, the only difference in the construction shown being that the contour ofthe former is somewhat exaggerated which is natural owing to thefact that it is of comparatively-large size. The particular shape of the pattern or former, however, is not'a matter of consequence. We prefer, althoughwe do not restrict ourselves in this refer to like parts throughout the several figures. '7

respect to swing the oscillatory member and to rotate the face plate about parallel vertical axes'and to provide means for eflectively' disposing of the lubricant which is directedagainst the work during milling and also the chips which result as a consequence'of.

the milling operation. -We prefer also to provide a fixture removably connected with said face plate and .to which the workv is clamped, the 'constructionbeing suchqthat several piecesof workcan be connected to the-fixture atone time, i, Asa matterjof increasing the eflici'ency' lot the machine We prefer that when'one i'ece oflfiwork is milled, to rapidly'rotate the ace plate or turn table" so asto qu'icklybringa second. iece of work in position to be'profiled,jandv-t is-we do by automatic""quickrfeed' meohanism.which is thrown into :action atthe proper. time'o'r' times; fWe prefer 'also, ;t o provide this fir? ture with certain devices which'pract-ically form apermanent part thereof, the fixture with'its attachments presenting a unit which can be mounted'upon or dismou'nted' .from

the-machine,- aSlSllCh leaving nothing in the way of adjust-mentorsuch mattersto a ma chinist.

The foregoing. is. a general description of; some. of the featuresot theorganization 1 shown. in the drawings but to which we are not however limited except as. required bytheisc ope "of the claims"; we will hereinafter I r'eferfconsid mhly in detail to these pointsv and certain others.

. vThediiierent parts of thetmachine may supported by. any desirable frame work; for this. purposewe have -Sl1OWI1' the base -or bed '20-and'- the standard or column rising therefrom and bolted or otherwise suitably connected tothe upper side'of said base or: bed. oscillatory member such as meets 1 requirements,- 'is that. denoted in Ta gen .e-ral' wayby'QZ'thesame'being shown as consisting of a horizontally disposed hollow. or-

clia'mbered arm which rocks on-the vertically;

disposed shaft 23 fixed I in suitable bearings as Qetat' the rear s1de1.of.the bed g The .hollow oscillatorymelnber-or arm 22', as vwill-e. hereinafter appear, incloses some of. the driving parts for the iworklarrylng rotary face :plateor turn table 25.: ,(See' Fig- 4:.)

' Thefa'ce plate" or turri table 25- is'o'f praca fsubstantiallyj central opening and a de-' .55

tically. circular form, and it is shown having pending hollow pivot 26 6) ,rotative' in an interior hub27 atthe-outer end of the oscillatory arm 22 which, .asfPwill be understood, is supported;by,;"and.swings in eontactwith, or against 'the upp er side of the bedQO, As willhereinafter appear this face plate or'turn table 25- ispower operated, be

ing..cont inuously r'otative during. the pro-u filing operation, although atintervals' 1t 1s.

.giv-enacceler'ated movement's. Although the face plate orturn'table25 constitutes a'work as will. hereinafter appear.

"scribed? circular plate of largerv diameterthan the face plate and ;as ha'vin at its center an opening and. as also provi ed with a depending'spou-t 30 inregister withsaid opening and which ext'ends into "the centralopening ofthe. face pla-te 25' and" also into'the hollow piyot or journal portion. 26. Through this spout '30 and hollow pivot 26 the lubricant and chipsv can p SS and will be disposed of Preferably; although not naaan fthe bandjorlannulus 31 surroundin and practi:

ca'lly-in the plane. ofthe fflc'e p ate 25, being fastened to the underside of the fixture or plate 28 by means'ofscrews32 or. otherwise all as shown in-Fig, 6. ln the present. ease the periphery of the formrorpatteinBl constitutes .thefactivje partthereof, althongh this is neither material or essential.'-We might alsojindicate. at this pointthat the fermer'as filing-offthree of work; neither is this essentialb ln connection with the .fo'rmer- 31 wefpre'fer to pro ide; what is known as Eforfiierpihfl? and such a one as satisfac .torily ai1'swqafrs;our. purpose is that denoted by 33, it being "shown inFigs'; l and 2 for example. as; having at active-portion an anti=friction roller 3st which directly enx'gages the working surface of the former 31 ,as' shown in .Fig. 2. 1 This"former pin. or

stud .,33 isynormally" stationary and it mounting as shown will be hereinafter c .'As -.a'lready.fiintimated the former 31 is held solidly against 'the'former pin or stud securing theprofiling' operation-and to accomplish this: function various means may beiprovided, althoiigh we haveF-jh fist-rated 'fo1- -this purpose the weight 35 con cited to the outer. end of the' cord or chai'n 36 passthe bed '20,- the inner end of the said cord or chain 36"being nnited with the oscillatory Karin 22 asshown best in Fig. 1. Tllc stud or former33 lisprovidedjwith a shank to fit a suitable "socket in the bushingist), which {rel 'niovably fits the bearing sleeve 10 as shown I best in. Figs; land 2, said-sleeve 40 being split'or divided. at its 'upper portion-.- and v carrying thefclamping screws 42 which can" be set up to. cause the said split bearing sleeve-i0 to tightlyembrace' the bushing 39. By loosening the said screws 42 the grip of tl1e.' bearing sleeve 40 upon the bushing 39 for er is connected with the fixture or plate I i 28.' Said former'is shown as, consisting of a 11s 'ing around 'an'anti-friction roller or sheave 37f supported by a bracket 38 on one sideof i the upper side of the fixture or plate 28 as;

- shown in both Fi s. 5 and 6. As illustrated can be relieved so that when necessary as will hereinafter appear said former pin may? be remored. The bearing sleeve 40 is preferably rigidwith the slide 43 (see Figs. 2 and 15), sald slide 43 bemgadjustably sup-.

ported by a way 2151 14 on the bed 20 and being held in its adjusted position by means of clamping screws 5; From this descriptibn it will be apparent that the'slide 43 is adjustable transversely of the base or bed 20' and by reason of this mountingithel former stud or .pin 33 can be adjustedtogcouform to the size of the -particular former in use. The slide 43 in additionftd the clamping bolts at5fiis equipped with a pin 46 adapted to interchangeably fit thefperforations. 47 in or upon the way 4A, said perforations being shown in Fig. 15 as'on a straightdi etraiis- .versely of themachme and the pin occupying the extreme outermost; perforarbolt 46 tion. By lifting the said .pin46 out of saidoutermost perforation moved inward, and. when the-said slidehas been properly positioned, tl 1 e -..pin 4e willbe thrust into a second perforation, it being unthe slide stud 33.

The pieces 0 denoted by 48, and they are clamped upon there are three 0? such pieces, and in addition to being clamped to the "upper surface of the said fixture or circular plate'28the ably 40 Througrl ends of the said pieces of work also preferengageagainst blocks or abutments ,as as upon the upper side of the fixture 28, whichblocks or abutments 'as a'matter of convenience are fastened to the fixture by screws. Tapped into the upper's'ide of the fixture 28 are screws/ 50 which extend through longitudinal slotsin the clamping members 51,- springsas 52 bearing against the clamping members 51 and tending to constantly elevate said clan'iping member or shift the same to their inoperative positions, the clamping members when wholly open acting against the heads 53 of the screws 50. i the tails of'the clamping members 51 are tapped screws 54 equipped with .levers 'all as shown in saidl igs. 5 and 6, the lower ends of-the screws 5% being adapted to engage projection sideof the fixture 28. 'hen the screws 5%. are turned in one directionthe active or inner ends .of the clamping members-51 will be elevated by thecoiled springs 52 whereas when said screwsa'il are turned in the opposite direction the inner ends of the clamping members will be forced downward to clamp the pieces of work 48 upon the supports 57 'Any other means the; slide 43 can be a f work to be profiled 'f eao hj' s as 56 on the upper of course, might be utilized-for clam 'iing the work to the fix ture. 'In the present instance the machine is adapted toprofile the inner edges of the pieces of work-4,8, and said inner edges with the inner edgesof the abutment blocks or bridging pieces 19 1 After one-piece of work 48 has been profiled, the face plate or table as will hereinafter appear, is rapidly rotated so as to bri'fig time the next piece ofwork 48 to be profiled. T

Any suitable means may be provided for operating the face plate or turn table The meansshown for this purpose will now be set forth. Fastened to the hollow pivot or journal portion by screws or otherwise also Fig. 4) said worm gear 58 'beingmeshed by the worm 59 keyed or otherwise suitably Said holiow shaft incloses the rod (31 promembers as 63 and (B l. (34 coiiperates with the clutch member (35 at rotation-by the oscillatory arm We might makehitclear at this time that when the clutch member- 63- is shifted the clutch 64 .will, be" simultaneously shifted by' the means just describecl,.the construction being such that when the clutch member (ll env gages the'clut-ch member (35. the clutch mem, 'ber (53 will be out of engagementwith the clutch member (37 on the stud shaft (38. Thisfixture will be thrown out of relation with the power-driving mechanism, although the shaft (lfi'whicln as will now appear, is manually operable. or otherwise suitably connected therewith the pinion 72 to the shaft of mesh with I gidly connected the hand wheel understood for the rotation of theturn table fastened ti the hollow shaft 60 (see Fig. 4.)".

"vided its ends with projecting pins 62 extending through longitudinal slots in said hollow "shaft and connected with clutch u The clutch men iber pported as at resent a contour agreeng with the outer surface'of the former 31. j

. .7! tool without delay into engagement with as indicated in Fig. 6 is a worm gear58, (see the inner end of the shaft 66 supported for a studshaft' 68 with thehollow shaft ('30 and sumed that the shaft 66 is being rotated and 65 and when the clutch member 63 is moved a into engagement with thecluteh member (3.4 onthc stud shaft (58, the said turn table and The shaft 68 has lgeyed i the spur gear 71, (see Figs. '4' and 17) in 73. This construction provides, as wifibe,"

particularlyadvantageous when the'turn ta:

or face plate by hand, and it will be clear that when-said'turn table is being operated by -power,there 1s no operative connection therewithqof the handwheel 73 which is ble'i being rotated at aihigh speed. Ifv the turn table were rotated ata-high speed and if the handwlieeli7 3 or itsIeq'uivalent were cpnnected there-with, the hand wheel would be-rotated at such a high speed. that it might v causethebreaking of an armor leg or-other wise myurea machinist. By 'disconnect-ingu the manual control from the turn table'while- .gthe powerlfe'edis on, there is no ,dan

ger vof. an; attendant being. injured by the wheel 3, 'for as will be understood, the instant the power is connected with the-tu'rn tablesaid turn table is positively and immediately disconnectedfrom the hand wheel: or equivalent part 73.

- Theshaft 66 is shown having fastened to its 1 rear end'the beveled gear 74 =.(Figs. 7 and 11) mesh with the beveled gear 75' fastened to Y {the lower end tof the stud shaft" 7 6'c0axial with and supported by the oscillatory arm 22. Fastened to the upper end of said f stud sha'ft76isa beveled gear 77 (Figs. 7 and 11-)f in mesh. with a beveled gear; 78 'rigidwit'h the inner. end of the elongated sleeve 79V loose on the shaft 80 which, as will herein after appear, is continuously rotative The shaft 80 has .fixe'd thereto at oneiend theste pulley 81'and at the otherthe spurff-gear 82 operatively connected by a tra-inof change gears denoted in a general 'way l y--'83 to the shaft 84 supportedlike said change gears upon suitablebearings onthe bed 20. The shaft 8a is provided withlthe bevel pinion? 85 in mesh with the beveled gear 86 fastened to thelo'wer 'e'nd oft theshaft'87also sup v ported by bearings upon said base or bed-20.

Fastened to' the upper end of the shaft 87 t is the worm" 88- inmesh' with the worm gearcooperating with clutch teeth 93 on the innerface offthe' beveled gear T8.- In Fig. lithe clutch member 92 is shown as being in en-" gageinentwith'theteeth 93 (although this is not the normal relation) so that when power is applied tothe pulley 8 1, theishaft 80 will be rotated to thereby rotate the gear 82 and the latterin turn through'the described connections rotating v the worm 88, which serves tofrotate theworm': gear 89 and through the pawl 90 the: ratchet wheel91{ whereby thesleeve'79 willbe-t urned to cause table or face plate'25, this train of? parts'g' already described being. in action the the gear 7-8to rotate the gear 7 7 and through I I center o' f motion of the arms 105 and 1048.-

The bore. of the oflset 109 has a. plunger 111 the parts already described-Irotatethe turn slow feeding movement or while the profiling or .m1ll1ng operations are actually taking place, When one piece of workis profiled, me

- lturn table will be rapidly rotated tobring. a second piece ofwork into positions to be operated: on by. a tool, and .thequick. feed IIlOtlOIilS thrown .into action in the present instanceQby shifting the clutch 92 i'nto en.-

gagementwith the beveled gear 78, whereby the latter ispract'ica'lly "directly driven from the shaft- 80 and naturally the power of the beveled gear 78 is v transferred to the turn table throughthe parts set forth, this move,

ment being; as will be understood, a very qu1ck one. During, the; quick f eed movement the pawl 90 rides idly oven-the'teeth of the rotating ratchet wheel 91.

jThe'foscillatory arm22 isprovideo with a bracketkwhich supports -;near'*its center of motion th u'prightpin or pivot 94:":(Fig; 7)

and mounted for -swi'ngjng movement on this pin orpivot is a sleeve 95' provided near its upper endwith an arm 96 and'at its lower end with a substantially similar arm 97 (Fig 8). The arm 96 isequipped' with a yoke 98 toenter a peripheral groove, in the clutch 92 (Fi while, the lowe a si engaged atall' times by the spring plunger 99 set-in a bore in the said bracket 'on the oscillatory; arm" '22, the-tendency ,of, the

spring 1000f said plunger-beingto apply a v-consta'nt effort through said-plunger to" the arm ,97 inl'a directio nyto swing the arm, 96':

: to carry the clutch 92 into engagement with the teeth-.93, this action, however, being norn'ially resistedby the spring latch 101 ,(Fig.

-8).of approximately angular term, ,the l'ongqbranch of which normallyengages.v acatch 102 on the -arin 9.7, the latch, however, "being shown; astrippedjin saidFig 8,'--it being assumed at this time that thec'lutch'92 is in engagement with theteeth' 93 and there'- bvthe beveled gear 78 will be connected,-

practically directly; to the shaft 80. The arm 97 is shown equippedwith a pin 103 ext-endingdownward through a longitudinal slot in the link 104 (Fig; 8) supported bo e the oscillatory arm'- 22. There is, 5 therefore, as will jbeunderstood, 1a loose-connection be} tween the-link l04 and they Iclutch shifting device made up" at asleeve195 and the arms 9.6-a1id97-Q The'link 104 i connected at its ported by, a, bracket or bearing 1 107 (Fig.

of said, arm 110, ,being coaxial with. the

{outward the outer endv with the cfra nk arm 105, pinned or otherwise suitably connected to theloiver, end of thepivot 106".(Figs. 7and 8) sa newness (Fig.8), ,The arms llO and S are-adapted to-he engaged by tappets such as113 and 114 carried upon-the periphery of the fixtime 28, it being understood that there are several of each of these tappets. The tappets 113,in the pr'esentcase serve to throw in the quick-feed mechanism, while the tap i 114 serve to throw the quick-feed mechanism out of action, the tappets 113 being adapted for such purpose to engage the arm 103, while the tappets 114 engage the yieldably backed arm 110. It will be assumed that the fixture 22 is travelingin the direction of the'arrow in Fig. 8 and that the tappct113 has engaged and swung the arm 110 'ontward. When said arm was swung outward by said tappet 113 the link latch 101' engaging the catch 102.

191 through the intermediate parts was slid inward so as to trip thelatch 101 and release it from the arm'97 whereby the spring ward and therefore thearm 110 inward through the agency of' the offset 109 and spring plunger 111, As the arm 108 is' swung outward by the tappet- 114, the link 194- throngh the intermediate' parts is pulled outwardly, thereby drawing the arm 97 outward and consequently disengaging through the intermediate parts the clutch 92 from the teeth 93, and whenthe arm 97 has been re-' turned to its initial position, it will be held positively in such position by the spring 7 Owing to the fact that the arm 110 is yieldingly inc lnted,'there is no possibility of injury resul ing should two tappets simultaneously engage both. arms 108 and110. It will be seen that the outer or active ends of the hrms 108 and110 are bent inward and that 'they'are not in the same horizontal plane, by reason of which the said arms can be properly engaged by appropriate tappets. The tappets 113 and 114 are rigidly connected with the fixture "28 and said tappets may be connected to the periphery of the fixture by bolts each designated by 115 and adapted to enter a T slot 116 (Fig, 6) 1n the circumference of the fixture, it being seen on reference to Fig. 8 forinsta'noe that the operative portions of the tappets 113 are above the operative portions of the tappets 114, These, tappets are originally set in definite positions so that they need not be adjusted by themachinist, whereby the fixture with the forming cam 31 and said tappets as well as a throw s ut member,

stitute a unit, so that when thedevice is mounted in oron the nmchine nothiugis plate or turn table 25,101- automatically stopping the power feed of said table 25 when the last piece of work has been profiled, and although such means may vary as to character, that now to be described has 'been found satisfactory and involves a throw out", member .or knock off device as 119 fastened to the periphery of the fixture 32. Coiiperative with this knock oil device 119 is a rod 120supported for vertical movement in a bore of an'oifset upright extension 121 of the swinging-worm-shaft support 69. This rod 120 is given an initial down-' ward movement by, the throw out device 119, the final movement which is a quick one, be ing effected through the agency of a spring as will hereinafter appear; The rod 120 between its ends has a slot 122 (Figs. 9 and 1'0 the inner-wallet which has straight and inclined portions 123'and 124 respectively successivelyengageable by the tip of a spring plunger 125,said tip normally engagingthe straight face 123. The plunger 125 and its" spring 126 are inclosed. in a tubular extension 127 of saidsupport 69. Whenthe knock off device 119 strikes the upper end 2 g of the rod 120. the latter is pushed down} ward causing the tip'of the spring plunger 125 to ride'along and then out of contact with thestraight face 123'. As soon as'the spring plunger passes off said straight face 123 it comes into contact with the inclined 7 face 124 so that the spring 126 of the plungel-serves to rapidly advance said plungerand thereby causes the same tolride along the angular face 124 thereby. rapidly 'pressing the rod downward and, through the intermediate parts shifting the clutch 63 into engagement with the clutch member 67 and at the same time through the rod 61 120' anoving the clutch 64 cm; of engagement with the clutch 65 tothereby stop the power in feed, although the hand feed is, on this action, thrown into operative'relation The extension'r121 supports for rocking motion the short shaft 128 which rocks about'an axis transverse, to the axis of rotation of the shaft- 66 and to the outer end of said shaft 1 .128 is pinned or pther wis'e suit a bly con;

man

- of course be thrown though said means may vary against the companion ing cutter as supported by 'yokeor substantially U-form. -.14:7 ,ancl 1 18 are eccentrically with the hub of said handle is 4L and 9), the inner end of a pin 1'30 (Figs. which fits a notch 131 in the rod 120. The

ro k shaft 128 has at its inner endan-eclows that owing to the described means when the rod 120 is lowered in two successive stages as already described, the shaft 128 through the lntermediate parts is rocked and through the pin 132 serves to operate the.

fork 133 in a direction to shift the two clutches 63 and '64 as already described to throw the power feedout of action and 'the hand feed into action. The power feed can into action by lifting up the handle 129. Theswing box 69 is normally held in operative position by a spring latch 13 1 engaging a catch 136 on said box, said latch being pivoted to the arm- 22, and being operable by. the spring plunger 13 7 as shown 1n Flg. 9. By manually tripping the latch 134 the box 69 can be swung outward by handto carry the worm 59 out of mesh with the worm gear 58 and hence permit the turn table 25to be-rotated by hand.

lVeprovide means for compensating or taking up lostmotion in the gearing which drives the turn table or face plate 25, and

which-lost motion may arise from a variety of causes, for instance backlash, and 'al-' as to character a. frictionally-operative device active against the turn table or some part associated there-- with, meets the desired conditions, and we have for this particular purpose shown a friction brake 138 (Fig. 6) which isprovided with a pendent shank or web 139 attached by screws or otherwise to the outer end-of'the oscillatory arm 22,

comprising a fixed 'jaW 1 10' and a. spring- .operated jaw 141 between which is situated the depending annular flange 1 12 of the ringfastened to the fixture 28. It will be understood that the two jaws 140 and 141 engage at all times this annular flange 1 12, the spring jaw 1&1

jaw and the pressure of the spring or springsl l t of the jaw 141 is suflicient to effectually prevent chattering of the fixture 28 during the profiling opera tion.

lVeprefer to employ two tools, a rough- 146, see-Fig. 1, said cutters being fastened to the lower ends of spindles-as 147 and 1&8 bearings upon the slide 150 movable. transversely of the machine upon ways of the cross head between the uprights itwill be seen is of The spindles longitudinally adjustable of standard 21 whichspectively.

1165 may besaid brake pressing the. flange solidly.

145 anda finishing'cutter as they may be operated by levers as 151 and 152 and may be clamped in their operative positions byv clamps as 153 and 154: as best shown in Fig. 1. Supported by; suitable hearings on the op of the standard 21 is a main shaft 155 having a stepped cone pulley 156 at one end and a substantially simi lar pulley157- at the other end, the latter being "connected by a. belt 158 with the stepped cone pulley 81 already described, The machine receives its pow-er from a belt 159 connected with an overhead pulley not shown. Movable with the cross slide 150 and loose on the ,shaft 155 are the spiral gears 160 and 161 having extended hubs, the adjacent ends of which arev provided with engaging teeth 162 so that the rotation of one will be transmitted to the other. In mesh respectively with the gears 160 and 161 are the spiral gears 163 and 16 1'splined or feathered to the spindles H7 and 148-re- During the profiling operation- 161' are clutched to the the gears 160 and this purpose the clutch shaft 155, and 'for provlded,

ment thereon and in the present instance being rigid with the sleeve166- adapted to be connected by means of a screw 16? with the hub of gear 161. -The clutch 165 is shown as being in engagement with the hub of gear 161, this relation being maintained during profihng operation, although when forming a pattern as will hereinafter appear. the clutch' 165 is disengaged, whereby the spindles 1i? and 1&8 will not be operated. To

"throw the clutch 165 out of engagement with the hub of gear 161, the screw 16? is backed out and the clutch 165 slid along the shaft until it disengages said hub, The spindle carrying cross slide 150 is provided with a laterally extending'rack bar 168 in mesh with the pinion 169 (Fig. 1) in mesh with the-pinion 1T0 carried by the shaft of the hand wheel 171 which shaft issuppor'ted by suitable hearings on the column 21. Byro- 150 can through the intermediate parts be operated so as to laterally adjust the spinvdleslii'? and 14 8' to bring the rcspective tools' thereofinto cutting position and when the said crossslide is'set, it will beheld in its adj usted'position by a clamping member 172 (Fig. 1). -To properly position the tools 1i5 and 1-16. stops as 173 and 171 may be i provided. said stops having the usual micrometer-adjusting means and being shown as consisting of screws tapped through the blocks 17;") on the crosshead of the standard 21. T he cross slide 150 is shown in engagement with the stop .173, so that the tool 145 is in proper lateral position for cutting. This tool, however, is elevated and it will, therefore, be necessary to lower it by means of the cutting field, and for this purpose I said clutch being splined to the shaft 155 for sliding move-.

tating the hand wheel 1T1.-the cross slide of the handler-er 151. 'After the tool 145 has profiled the several pieces of work; the spindle 147 elevated and thecross slide 150 is then moved by means of the'hand wheel 171 and cooperating parts, into engagement: with the stop 17-.t which motion brings the cutting tooll-ltliinto proper lateral position. This tool. 146 will, of course, have to be lowered by the hand lever 152, it being uru'lerstood that when the respective spindles are lowered they are clamped as al= ready set forth, It. will be obvious that the .l)(.2l1'lll 1' S of both spindles arerigid with the cross slide 150 and that when the cross'slide operated 'both spindles move laterally therewith, although they are independently I vertically adjustable.

The levers 151 and 152 to which we have referred are pivoted to the respective spindles 1 :7 and H8 and are connected by means .of-links each denoted by 200 with the slide 150; they being also provided with counterbalancing weights 201 (Fig. 19). The lower portions of the spindles extendtln'ough the sleeves 202, the spindles being provided w th collar" 203 and 20$ respectively engaging 'the opposite ends of the respective sleeves 202 with which 'we should state the clamptgainst the upper ends of the washers 207 so as to constantly apply an upward thrust tothe rods 205' and therebyzatall times tend to elevate the spindles 147 and. 148. Either spindle, "however, can be at once adjusted longitudinally through the manipulation of its lever 151 or 152, and when the adjustmentis secured it will be maintained through ':the action of a clamping device 153 or 154.

' We provide means wh ereby thel speed of the tool spindles-117 and 118 can bechanged withoutchanging speedof rotation; of the work table or face plate 25, and although any 1 suitable means may be providedv for obtainingthis result, we find that it can be easilyaccomplished by the belts .158' and 159.911

-read .described-a-cting in conjunction withv a be tshifter such 33-176 which consists of a manually operable rod supported for longitudinal reciprocation upon-suitable bearings carried by the column 21 andshown best in it YFi'gJS, said belt shifter 176 being-provided The bearing the fork or fingers 1T? cooperating with tinbelt 158, while the forlcor fingers 178 t operates with the belt 155 .Xaturally i 1: change in speed of the spindles 1st? and 11?? is effected by shifting the belt. 159. and will be assumed thatitflis desired to increase the speed of these spindles. The belt i5? therefore shifted from a large to a small step of the pulley 15 .3, and when this action occurs, it will be clear'that the belt 158 is moved at the same time from a large to asmall step of the pulley 15? and from a small to a large step of the pulley 81. from which latter as will be recalled the turn table 25,, through intern'iediate parts receives its motion, so that althoughthe speedot the spindles is increased. the motion of the turn table during both the normal and quick feeds remains constant. We might ere plain, although it is believed that it will be understood, that in the present case the pulleys 156 and 157 face in the same direction and that the pulley 81 faces in the opposite direction, although this may not always be necessary. To effectually support the'oscillatory arm 2'. at its outer end. said arm may be provided at itsouter end with a slide or shoe :189'bolt-ed or otherwise suitably con nected to said arm and adapted to travel on the way 190011' the bed .20. (See Figs. 1.

and 2.

It is believed; that the operation of the machine will be fully understood from the Ioregoing observations, but nevertheless it; is desirable to briefly refer to the several steps of the same in somewhat definite order; It will be'understood that initially the fix ture 28 is clamped to the turn table or face plate 25 and that the pattern .31 isapplied to the under side of said fixture 28 and that the former pin 33 orthe ai-iti-t'riction roll 31- thereof is in contact with the working surface of the fenne -'31, such relation being maintained by the weight-'35 whichas already indicated holds the former solidly against its cooperating pin. Pieces of work such as 18 will then be placed upon the upper side of the fixture 28 with their ends against the abutments 19 as shown in Fig 5 after which the work will be clamped in place-by the clamping members 51 as al ready described. The cross head 150 will then beadjusted by thehand wheel lil as already set forth so as to bring. the axis of i the roughing toolspindle 147 into vertical line with the contour to be followed or with the extreme inner-end of one -of the pieces 48 of "work; After this is done, the spindle 147 will be lowered by the hand level" 151 "so as to bring the roughing tool into contact with the inner" surface of the first piece of work. Following this the fniachine will be started'by throwing into action the overhead pulley which is connected by the belt through 156 rotates the operatively connected shafts 155 and 80 are simultaneously rotated so that the spindle 147 and thereforet'hetool 145 carried thereby will be rotated so that the tool can mill the contour of the work. At the same time the turn table is rotated, by reason of its described connections with the shaft 80 so that the tool 145wi11 be caused to mill a contour in conformity with the pattern or cam31, it being understood that the tool traverses during the profiling ,op-

eration iii-succession the inner faces of'the pieces of work 48. After one piece of work i milled, the turn table 25' is rapidly; rotat. d as already described to bring a second piece of work under the action of the roughing cutter 145, and this operation is followed until the last piece of work is milledsucceeding which the turn table operatingmechamsm is thrown out of action as already described by the throw out device 119. After the roughing operation has been performed the shaft 155 is stopped by unclutching the overhead pulley. (not shown) and the cross slide 150 will then be movedacross the 1na chine by the hand wheel 171 until it strikes the stop 174. at which .point the spindle 148 is lowered after which the operationsalready described are repeated in the order mentioned. \Yhen the finishing operation .is performed the turntable 25'is stopped and-at such time the cuttenllb is elevated, while the shaft 155 will, if desired'be thrown out of action. The lubricant and chips pass tl1e' central discharge spout of the 'pan-like fixture 28 into a tank (not be utilized for forming a pattern or former shown) inside the hollow bed '20 by way of the openingQOO in the arm 22.

\Ve provlde means as will hereinafter apnear whereby work ofa certain contour can for the production subsequently of like work, and this whether the machine is to contour one or more pieces of work, and although this means may vary as to character, that now to be described has met the desired conditions, and it is best shown in Figs. 15 and 16'. In'the production of a former of the character already descrlbedywe place the several pieces of work together inthe rela-' tion they are shown as occupying in Fig. 5 and clamp the pieces of work to the fixture 528 with the ends thereof against the abut-' ments or blocks dd] Inother words the pieces of work and. the interveningblocks "shown former, and their outline is shown in Fig. 15

in Fig. 5 present a former for a diagrammatically. The cutter 145 is, then removed and 21 plain pin 180 is applied to the spindle 147 after which the spindle will be laterally adjusted if necessary eration of the cross slide l50'and then lowered by the lever 15l-so as to bring said pin 180 intocontact with the inner surface. of the assembled pieces of Work as shown 1n former ,stud, both: coa'ctive to move. said by the op Fig. 15. The.fo'rmer pin 38 will then be removed from the bearing sleeve .40 by unloosening the screws 42 after which a support v181 for av shaft 182 will be mounted in said sleeve 40. shaft a pulley as 183 will beconnected, while to the upper end thereof a cutting tool as 1Sl will be connected. The inner surface of the assembled pieces .of work should be held solidly against the former pin 180, and

for this purpose the'weight 35 may be utilized, although it will be necessary. to shift said weight from the position it is shown as occupying in Fig. 1 to that shown in Fig. 15, and in this case the cord 36 will be passed around a pulley or sheave. 185 exactly opposite the sheave 37. The pulley 182 will then be connected with a source J To the lower end of sald T0 of power as. by the belt 186 passing around guide sheaves 187 on the bed 20, .in' order to rotate the shaft 182, and the shaft 155 being thrown into action, the turn table 25 will be rotated so as to cause the cutting tool to follow the contour of the pattern or former 1S8 fastened to'the under side-of What we claim is:

1. In a profiling machine, the combination of a carrier mounted for back and forthv movement, a rotary work supporting table on said carrier, a former and a cooperating former stud both coactive to more said table, means for connecting aplurality of pieces of work with "said table, profiling means active successivelyuponthe pieces of work, on the rotation of the turn table,- and mecha nism for rotating the turn table-and for aceelerating the rotation thereof between the times at which the pieces of work are operated upon. I

2. In a profiling machine, the combination of a carrier mounted for backand forth movement, a rotary work supporting table. on said carrier. a former and acooperating table, a spindle, a profilingtool connected with said spindle, means .for connecting. several-pieces of work with the work supporting table whereby as said table turns said pleces of work willb'e successively profiled by sald tool, and mechanism for rotating of a carrier mounted for back and forth movement, a rotary work supporting table 011 said carrier, a former and a cotiperating former stud both coactive to move said table, mechanism for rotating said turn both coactive' to move said table, a crossslide, adjustable stops on the framework of the machine for determining the lateral positions ,of' said cross slide, and a plurality of rotary longitudinally adjustabletool carrying spindles supported by said cross slide.-

(3. In a profiling machine, the combination of a carrier mounted for back and forth movement, a rotary work supporting table on said carrier, a former and a cotiperating former stud both coactive to move saidtable, means for connecting a plurality of pieces of work with the turntable, and mechanism for rotating the turn table, the latter being provided with means for effecting the stoppage of rotation thereof at a predetermined point.

7. In a profiling machine, the combination of a carrier mounted'for back and forth movement, a rotary worksupportingtable on said carrler, a former and a former stud both coactiveto move said table, means for connecting a plurality of pieces of work with said turn table, profiling means to act successively on the work as the table rotates,

mechanism for rotating the'turn table, for moving the same at accelerated speeds in the intervals in which the pieces of work are profiled, and for also stopping the rotation of the turn table after the last piece of work is profiled, and means connected with the table for causing said accelerated movements and said stoppage.

8. In a profiling machine, the combination of an oscillatory membenthe axis of oscillation of which is approximately vertical, a work supporting turn table supported by said oscillatory member at a point removed from said axis of oscillation and rotative about an axis substantially parallel with the first mentioned axis, means for supporting said oscillatory member throughout its swing, at a place under said turn table, and a former and a coiiperating former stud both coactive to move said table.

'9. In a profiling machine, the combination of a carrier mounted for back and forth movement, a rotary work supportingv table on said carrier, a former and a cooperating former stud both coactive to move said table, means for connecting work with said table, profiling means acting upon the work on the rotation of the turn table, and mechanism for rotating said turn table and 'for accelerating the rotation thereof at predetermined times. t

10. In a profiling machine, the combinationof a carrier mounted for back and forth movement, rotary work supporting means on said carrier, means for connecting the work with the worksupporting means, a rotary spindle provided with a tool to pro- .file the work, a former and a cooperating former stud, both coactive to move the work supporting means, the diameter of the former being greater than that of the work.

In testimony whereof we aflix our signatures in presence of two witnesses.

. BENGT M. w. HANSON.

CARL L. GROHMANN.

Witnesses:

W. M. SToRRs S. M. K'ILBoURrIE. 

